Methods for programmatically manipulating sketches while digitizing features. r=bartvde (closes #3343)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@12103 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Handler/Polygon.js

@@ -127,7 +127,17 @@ OpenLayers.Handler.Polygon = OpenLayers.Class(OpenLayers.Handler.Path, {
         }
         OpenLayers.Handler.Path.prototype.addPoint.apply(this, arguments);
     },
-    
+
+    /**
+     * Method: getCurrentPointIndex
+     * 
+     * Returns:
+     * {Number} The index of the most recently drawn point.
+     */
+    getCurrentPointIndex: function() {
+        return this.line.geometry.components.length - 2;
+    },
+
     /**
      * Method: enforceTopology
      * Simple topology enforcement for drawing interior rings.  Ensures vertices